Typical Example Analysis of Calibration Fault of Water Pipe Instrument in Tai'an Station
LI Huiling
LIN Xiuna
ZHANG Ming
YU Qingmin
ZHAO Xiaohe
ZHAO Di
Abstract：The calibration of Tai'an DSQ water pipe instrument in the year-mid and year-end of 2020,there were many repeated calibrations in NS direction,which were unqualified.Analysis of the change of voltage difference in single terminal during calibration process,it is judged that the mercury in the calibration device fell,resulting in N-terminal blockage.The calibration is qualified after maintenance.In the process of typical fault investigation,the method of analyzing the variation law of single-ended voltage difference has a good reference and guiding significance for the operation and maintenance of station water pipe instrument and the identification of calibration fault.
Keywords：water pipe instrumentcalibration faultvoltage differenceTai'an station
Publication Date：2024-06-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 89-93 )